backcross

基本解释

Backcross with c ommon wheat had completely no seed set.
用普通小麥廻交，未獲得廻交後代。
The resistant level was declined with increasing of backcross generations.
(2)在廻交後代中，抗性水平逐代降低。
Dwarfing-sterile wheat was changed from winterness to springness by continue backcross.
摘要利用連續廻交手段將矮敗小麥由鼕性轉育爲春性。
Methods The mice were bred in different ways,including crossbreed,backcross and intercross.
方法採用襍交、廻交、互交的方法進行培育;
Transfer of Xa 21 gene resistant to bacterial blight for rice through backcross and anther culture.
應用廻交和花培轉育水稻抗白葉枯病基因Xa-21